The test option will send out a test contact so the “contactid” 123 sounds right to me. Do you have the trigger action set up properly? Did you turn the subscription to active?, it is inactive by default. Have you connected/installed it to your portal you want to listen to on? If you are having trouble getting the webhook set up correctly, you can contact support and they can walk you through it step by step. Here is a link to all the ways to contact our support team.

I have no idea how to connect it to a portal. I have a developer account, therefore I can only have test portals. Maybe I should add it to a workflow, but these workflows can’t be activated on trial accounts. Also I can’t ask anything from support, it shows me a login button… although I’m logged in